Cooler



FIG. 1 is an upper front left perspective view of a cooler showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof; and,

FIG. 6 is a top plan view thereof.

The “RED BULL” name and symbol shown in FIGS. 1, 2, 4, and 5, are shown in broken lines for purposes of illustrating environment and form no part of the claimed design. 

CLAIM The ornamental design for a cooler, as shown and described. 